Do you even "know" what demon means almighty.
Did you even know that the word "demon/demons" doesn't even occur one single time in your bible (which is I would guess the KJV, but other versions use the word demons instead of Devil/Devils)
The word Devil/Devils is the word used in the KJV, not Demons.
Some would derive the word from a root da--, meaning "to  distribute." More probably it is from a similar root da--,  meaning "to know," and hence means "a knowing one."
The "Spirit of God" is the one who drove Jesus into the desert to be tempted of the "Devil"
 Do you believe this? 
Of course this means nothing to you, since I assume you take everything "literally" when it comes to the KJV, I thought "just maybe" you might do as the bible admonishes you to do which is: 
 
"Study to shew thyself approved unto God, a workman that needeth  not to be ashamed, rightly dividing the word of truth." 2 Tim. 2:15
From Masonic Info.
[FONT=verdana, Arial, Helvetica][FONT=verdana, Arial,  Helvetica]Lucifer makes his appearance in the fourteenth chapter of  the Old Testament book of Isaiah, at the twelfth verse, and nowhere else: "How art thou  fallen from heaven, O Lucifer, son of the morning! How art thou cut down to the ground, which didst weaken the nations!""[/FONT][/FONT]
[FONT=verdana, Arial, Helvetica][FONT=verdana, Arial,  Helvetica]The morning star appears in the heavens just before dawn,  heralding the rising sun. The name derives from the Latin term  lucem ferre, "bringer, or bearer, of  light." In the Hebrew text the expression used to describe the Babylonian king before  his death is  Helal, son of  Shahar, which can best be translated as  "Day star, son of the Dawn." The name evokes the golden glitter of a proud king's dress  and court (much as his personal splendor earned for King Louis XIV of  France the appellation, "The Sun King."[/FONT][/FONT]
[FONT=verdana, Arial, Helvetica][FONT=verdana, Arial,  Helvetica]"Lucifer" is nothing more than an ancient Latin name for the  morning star, the bringer of light.[/FONT][/FONT]
[FONT=verdana, Arial, Helvetica][FONT=verdana, Arial,  Helvetica]When Albert Pike and other Masonic scholars spoke over a century ago about the "Luciferian path," or the  "energies of Lucifer," they were referring to the morning star, the  light bearer, the search for light; the very antithesis of dark, satanic evil."[/FONT][/FONT]
You must understand that "God is the one who created "Good & Evil" for his purpose, and God created Satan for the purpose to sift you like wheat.
"By HIS SPIRIT He hath garnished the         heavens; his HAND has FORMED THE CROOKED SERPENT" (Job  26:13). God garnished the         heavens by His SPIRIT, because they are a thing of great glory,  beauty, and splendor. But         the crooked SERPENT God formed by His "hand" -- at ARMS LENGTH.  Thus indicating         it was something necessary, but not of His HEART AND SPIRIT!  Satan is called "the crooked         serpent." This word crooked comes from a Hebrew word that is not  translated         "crooked" anywhere else in the Bible. The word in Hebrew is bariach,  and         it means "a fugitive," Strongs #1281. And "fugitive" is         from the Hebrew word nuwa, Strongs #5128, among its  several meanings are:         "to [go] up and down," and "to and fro," and to "sift."         Remember that God names things according to what they are  and what they do:
        (A) "And the LORD [is this a high enough  authority for everyone?] Said         unto SATAN [not a heretofore archangel], Whence comest  thou? Then Satan answered         the LORD, and said, From going TO AND FRO in the earth,  and from walking UP         AND DOWN in it" (Job. 1:7 and 2:2). 
        
        It is the "crooked [fugitive] SERPENT" SATAN who goes "TO  AND         FRO" and "UP AND DOWN" in the earth! God created Satan for this  purpose. 
        
        (B) "And the LORD said [is this a high enough authority for  everyone?], Simon,         Simon, behold, SATAN [not a heretofore archangel]  hath desired         to have you, that he may SIFT you as wheat"  (Luke 22:31). 
it is the "crooked [fugitive] SERPENT" SATAN  who         "SIFTS" men like wheat! God created Satan for this purpose.
"In the name of our Lord Jesus Christ, when you  are gathered together, and my spirit,         with the power of our Lord Jesus Christ, To deliver such an one  UNTO SATAN for         DESTRUCTION of the flesh, that the spirit may be saved in  the day of the Lord         Jesus" (I Cor. 5:4-5). 
Do you believe what the Bible declares, or do you believe what preachers want you to learn?
And that is just what God created him for.
"Behold, I have created the smith [thats         me] that blows the coals in the fire, and that brings forth  an instrument for His work,         and I have CREATED THE WASTER TO DESTROY" (Isaiah 54:16). ["waster" -- Hebrew: shachath, decay, ruin, batter,  cast off,         corrupt, destroy, lose, mar, perish, spill spoil -- UTTERLY  WASTE, #7843, p. 115, Strongs         Hebrew and Chaldee Dictionary]. 
God created the "WASTER," not the archangel who later  supposedly became         Satan, but from the BEGINNING God said He created  "The WASTER" and         He created him "TO DESTROY" Now then, WHOS role  is it to         "destroy" the flesh of man so that the spirit may be saved? 
        
        "In the name of our Lord Jesus Christ, when you are gathered  together, and my spirit,         with the power of our Lord Jesus Christ, To deliver such an one  UNTO SATAN for         DESTRUCTION of the flesh, that the spirit may be saved in  the day of the Lord         Jesus" (I Cor. 5:4-5). 
        
        It is SATAN who was created from his very beginning to be "the  WASTER to DESTROY"         mens flesh (carnal mindedness) so that they learn not to  blaspheme (I Tim. 1:20).